The Accuracy Stat is an improvable variable that can affect the accuracy of all weapons excluding the Sigil. Specifically rapid-fire weapons such as the Assault rifle, and the Flamethrower benefit from this the most. Although not as helpful as some players assume, the stat can still give the player the edge if they improve their accuracy well enough.
Another method to seeing accuracy range is to use the Targeter item. Two yellow bars will appear, in which the area between the bars determines the range where shots can go off the initial target. As Accuracy improves, these bars close in on each other, as an indicator.
The maximum accuracy value a player could have is 100.